0fd53c7fe4
There are lots of places where a numeric argument of an argument string gets extraced as signed long value and then assigned to an unsigned long variable. If the value in the string was negative, it would not be detected as invalid (and replaced by the default value), but become a positive bogus value. With this patch, numeric values which are supposed to be unsigned get extracted with the 'ulong_value()' function, which returns the default value for negative numbers. Fixes #1472
50 lines
1.1 KiB
C++
50 lines
1.1 KiB
C++
/*
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* \brief Vm root interface
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* \author Stefan Kalkowski
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* \date 2012-10-08
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*/
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/*
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* Copyright (C) 2012-2013 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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#ifndef _CORE__INCLUDE__VM_ROOT_H_
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#define _CORE__INCLUDE__VM_ROOT_H_
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/* Genode includes */
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#include <root/component.h>
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/* core includes */
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#include <vm_session_component.h>
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namespace Genode {
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class Vm_root : public Root_component<Vm_session_component>
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{
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protected:
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Vm_session_component *_create_session(const char *args)
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{
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size_t ram_quota = Arg_string::find_arg(args, "ram_quota").ulong_value(0);
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return new (md_alloc()) Vm_session_component(ep(), ram_quota);
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}
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public:
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/**
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* Constructor
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*
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* \param session_ep entrypoint managing vm_session components
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* \param md_alloc meta-data allocator to be used by root component
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*/
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Vm_root(Rpc_entrypoint *session_ep,
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Allocator *md_alloc)
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: Root_component<Vm_session_component>(session_ep, md_alloc) { }
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};
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}
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#endif /* _CORE__INCLUDE__VM_ROOT_H_ */
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